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???
01/31/07 13:43
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 		 #131794 - this is what I was about to ask...
Responding to: ???'s previous message
Robert Revens said:
Interestingly I don't seem to get any output from MISO either, although the data sheet says "DOUT provides a copy of the bit that was input 15.5 clocks earlier"


OK something rotten is here... How did you connect the MAX (physically)? Read: have you double-triple checked the pinout, connections, shorts; asked your wife/girlfriend/neighbour to check it etc.

JW


List of 48 messages in thread
TopicAuthorDate
Interfacing AT89C51ED2 to MAX6957 via SPI            01/01/70 00:00      
   a quick look            01/01/70 00:00      
      A bit hidden I know...            01/01/70 00:00      
   just a hint...            01/01/70 00:00      
      Thanks Jan            01/01/70 00:00      
      I know this is an Atmel chip, but            01/01/70 00:00      
         not that type of error            01/01/70 00:00      
   Light at the end of the tunnel...            01/01/70 00:00      
      Some scope traces...            01/01/70 00:00      
         CPOL = 0, CPHA = 0            01/01/70 00:00      
            Excellent.            01/01/70 00:00      
               What is the current problem?            01/01/70 00:00      
                  Thanks            01/01/70 00:00      
                     Next time...            01/01/70 00:00      
                        smiling            01/01/70 00:00      
                     this is what I was about to ask...            01/01/70 00:00      
                        a simple SPI 'test'            01/01/70 00:00      
                        MISO            01/01/70 00:00      
                           have you tried            01/01/70 00:00      
                              Good plan            01/01/70 00:00      
                                 Eureka            01/01/70 00:00      
                                    That's good...            01/01/70 00:00      
                                       true SPI and non-SPI driven by SPI            01/01/70 00:00      
                                          TRUE SPI chip?            01/01/70 00:00      
                                             OK            01/01/70 00:00      
                                    good choice            01/01/70 00:00      
                                       I used such...            01/01/70 00:00      
                                    Full code for reference if anyone's interested            01/01/70 00:00      
                           where did you measure?            01/01/70 00:00      
                           soldering iron...            01/01/70 00:00      
                              proto and prod            01/01/70 00:00      
                                 ah so...            01/01/70 00:00      
                                    HUH            01/01/70 00:00      
                                       now I really don\'t understand            01/01/70 00:00      
                                          well, let me try again            01/01/70 00:00      
                                             Oh I see...            01/01/70 00:00      
                                                try asking the person that does my layouts            01/01/70 00:00      
                                                Layout tool?            01/01/70 00:00      
                                                   tool... yes maybe, but for X1/X2???            01/01/70 00:00      
                                                      Just curious...            01/01/70 00:00      
                                                         huh...            01/01/70 00:00      
                                                   DXP            01/01/70 00:00      
                                                      Let's move to chat? (off-topic)            01/01/70 00:00      
                        The problem lies on MAX6957            01/01/70 00:00      
   I am happy for you            01/01/70 00:00      
      Thanks Erik            01/01/70 00:00      
      waitaminute...            01/01/70 00:00      
         comments            01/01/70 00:00      

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